Run results for: lodash isUndefined vs typeof === undefined (take 3)

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/145.0.0.0 Safari/537.36

Browser: Chrome 145

Operating system: Mac OS X 10.15.7

Device Platform: Desktop

Date tested: 6 months ago

Benchmark engine: Benchmark.js

lodash.isUndefined

157.9M/s

triple equals

157.0M/s

typeof

151.6M/s

View exact numbers

HTML Preparation code:

<script src='https://cdnjs.cloudflare.com/ajax/libs/lodash.js/4.17.5/lodash.min.js'></script>

Script Preparation code:

var foo;

Tests: